See the Earth with a huge Ring all around... 
What? Yes, Do you remember the Pinatubo Volcano Eruption? The second largest volcanic eruption of the twentieth century, took place in Philippines, in June 1991.
The eruption realesed gases and ash to the high atmosphere. The aerosol cloud spread around the earth in two weeks and covered the planet within a year.
The cloud over the earth reduced global temperatures. In 1992 and 1993, the average temperature in the Northern Hemisphere was reduced 0.5 to 0.6C and the entire planet was cooled 0.4 to 0.5C. The maximum reduction in global temperature occurred in August 1992 with a reduction of 0.73C. The United States experienced its third coldest and third wettest summer in 77 years during 1992.
This was due to the Nuclear Winter Effect that this dust made avoiding a little of sun light to reach the earth surface. When theres too hot you look for shadow
Source:
http://geography.about.com/library/weekly/aa030901a.htm 
There is an idea to combat the global warming. An idea that could allow global industry not to make ANY change. No need to reduce nothing. Sounds crazy? Well, its an extreme solution If just a shadow, a big one, can reduce temperature. Why dont we create it? A shadow over the Earth. A BIG one.
What?! (again) There are many people suggesting the construction of a Mega Ring or Rings around the Earth, like Saturn rings, to paint a moving shadow over the planet so the temperature could be handled by humans. Those rings could be done with raw materials coming from mining industry or tech ones, like small satellites.
WOW.This sounds really crazy!! "Reducing solar insolation by 1.6 percent should overcome a 1.75 K [3 degrees Fahrenheit] temperature rise," contends a group led by Jerome Pearson, president of Star Technology and Research, Inc. "This might be accomplished by a variety of terrestrial or space systems."
A ring created by a batch of either "shades the tropics primarily, providing maximum effectiveness in cooling the warmest parts of our planet," the scientists write. An early version of their idea was presented but not widely noticed in 2002.
Benny Peiser, a social anthropologist at Liverpool John Moores University in the UK also notes that the Kyoto Protocol, a global agreement to reduce greenhouse gas emissions, is estimated to cost the world economy some $150 billion a year. He also sees a broader rationale for supporting the seemingly bizarre manner of managing Earth's temperature budget.
"I believe that this mindset, despite its apparent eccentricity, is actually rather reassuring," Peiser said. "It provides concerned people with ample evidence of the extraordinary human ingenuity that, as so often in the past, has helped to overcome many predicaments that were regarded as impenetrable in previous times."
OK. How much?
Well, could cost from $6 Trillion to.$200 Trillion? (Who knows, anyway)
Any other problems?....What about the countries with shadows during day? What about the others satellites? What about the Moon attraction? Could be for ever? What about: Hey! Im too cold, open it up! NO! Its too hot here! Close it!!!
Who knows What I know is that many times in history, when some freak dreamed about something, many times, was finally a goal.
Here is a scientist who says that its impossible to build. And he says why.
Source 1 Source 2 A Proyect for Google Earth done by Valery35 & Gerardo64
Previous Topic
Index
